Induction of Hepatitis E Virus Anti-ORF3 Antibodies from Systemic Administration of a Muscle-Specific Adeno-Associated Virus (AAV) Vector

Bibliographic Details
Title: Induction of Hepatitis E Virus Anti-ORF3 Antibodies from Systemic Administration of a Muscle-Specific Adeno-Associated Virus (AAV) Vector
Authors: Lars Maurer, Jihad El Andari, Kleopatra Rapti, Laura Spreyer, Eike Steinmann, Dirk Grimm, Viet Loan Dao Thi
Source: Viruses, Vol 14, Iss 2, p 266 (2022)
Publisher Information: MDPI AG, 2022.
Publication Year: 2022
Collection: LCC:Microbiology
Subject Terms: adeno-associated virus, AAV, hepatitis E virus, HEV, vector-based vaccine, neutralisation, Microbiology, QR1-502
More Details: The hepatitis E virus (HEV) is a major global health problem, leading to large outbreaks in the developing world and chronic infections in the developed world. HEV is a non-enveloped virus, which circulates in the blood in a quasi-enveloped form. The quasi-envelope protects HEV particles from neutralising anti-capsid antibodies in the serum; however, most vaccine approaches are designed to induce an immune response against the HEV capsid. In this study, we explored systemic in vivo administration of a novel synthetic and myotropic Adeno-associated virus vector (AAVMYO3) to express the small HEV phosphoprotein ORF3 (found on quasi-enveloped HEV) in the musculature of mice, resulting in the robust and dose-dependent formation of anti-ORF3 antibodies. Neutralisation assays using the serum of ORF3 AAV-transduced mice showed a modest inhibitory effect on the infection of quasi-enveloped HEV in vivo, comparable to previously characterised anti-ORF3 antibodies used as a control. The novel AAVMYO3 capsid used in this study can serve as a versatile platform for the continued development of vector-based vaccines against HEV and other infectious agents, which could complement traditional vaccines akin to the current positive experience with SARS-CoV-2.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1999-4915
Relation: https://www.mdpi.com/1999-4915/14/2/266; https://doaj.org/toc/1999-4915
DOI: 10.3390/v14020266
Access URL: https://doaj.org/article/59f135ac156247f2869a8a5148203a1d
Accession Number: edsdoj.59f135ac156247f2869a8a5148203a1d
Database: Directory of Open Access Journals
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More Details
ISSN:19994915
DOI:10.3390/v14020266
Published in:Viruses
Language:English